CVE-2020-6514: Inappropriate implementation in WebRTC in Google Chrome prior to 84.0.4147.89 allowed an attacker in a privileged network position to potent
Noroxi assessment
Priority: Monitor (action score 28/100)
- Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
- Probability of exploitation in the next 30 days: 7.7% (FIRST EPSS); higher than 94.6% of all records.
- Anyone who can reach it over the internet can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
- Fixed version: firefox-esr (Debian:10) 68.11.0esr-1~deb10u1; thunderbird (Debian:10) 1:68.11.0-1~deb10u1; chromium (Debian:12) 87.0.4280.88-0.1.
- Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).
Low priority for now. Upgrade to firefox-esr (Debian:10) 68.11.0esr-1~deb10u1; thunderbird (Debian:10) 1:68.11.0-1~deb10u1; chromium (Debian:12) 87.0.4280.88-0.1 or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
Inappropriate implementation in WebRTC in Google Chrome prior to 84.0.4147.89 allowed an attacker in a privileged network position to potentially exploit heap corruption via a crafted SCTP stream.
- BDU:2021-01749
- DLA-2297-1
- DLA-2310-1
- DSA-4736-1
- DSA-4740-1
- openSUSE-SU-2020:1020-1
- openSUSE-SU-2020:1021-1
- openSUSE-SU-2020:1048-1
- openSUSE-SU-2020:1061-1
- openSUSE-SU-2020:1147-1
- openSUSE-SU-2020:1148-1
- openSUSE-SU-2020:1155-1
- openSUSE-SU-2020:1172-1
- openSUSE-SU-2020:1179-1
- openSUSE-SU-2020:1189-1
- openSUSE-SU-2020:1205-1
- RHSA-2020:3229
- RHSA-2020:3233
- RHSA-2020:3241
- RHSA-2020:3253
- Published
- Jul 22, 2020
- Updated
- Jun 16, 2026
- EPSS
- 7.7% · 94th percentile
- CWE
- CWE-200
Report tools
Action score
28
Monitor
Low priority for now.
- CVSS
- 26 / 40 · 6.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 2 / 30 · 7.7%
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- Proof of concept exists, no weaponized module
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| chrome | cpe:2.3:a:google:chrome | |
| opensuse | backports sle | cpe:2.3:a:opensuse:backports_sle |
| opensuse | leap | cpe:2.3:o:opensuse:leap |
| fedoraproject | fedora | cpe:2.3:o:fedoraproject:fedora |
| debian | debian linux | cpe:2.3:o:debian:debian_linux |
| canonical | ubuntu linux | cpe:2.3:o:canonical:ubuntu_linux |
| apple | safari | cpe:2.3:a:apple:safari |
| apple | ipados | cpe:2.3:o:apple:ipados |
| apple | iphone os | cpe:2.3:o:apple:iphone_os |
| apple | tvos | cpe:2.3:o:apple:tvos |
| apple | watchos | cpe:2.3:o:apple:watchos |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- apple ipadosbefore 13.6
- apple iphone osbefore 13.6
- apple safaribefore 13.1.2
- apple tvosbefore 13.4.8
- apple watchosbefore 6.2.8
- canonical ubuntu linux16.04
- canonical ubuntu linux18.04
- canonical ubuntu linux20.04
- debian debian linux10.0
- debian debian linux9.0
- fedoraproject fedora31
- fedoraproject fedora32
- google chromebefore 84.0.4147.89
- opensuse backports sle15.0
- opensuse leap15.1
- opensuse leap15.2
Versions reported by the vendor
Affected version ranges reported by the assigning authority (Chrome). Independent of NVD's CPE analysis and usually ahead of it.
Google Chrome
- unspecified and later · before 84.0.4147.89affected
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:10 | firefox-esr | before 68.11.0esr-1~deb10u1 | 68.11.0esr-1~deb10u1 |
| Debian:10 | thunderbird | before 1:68.11.0-1~deb10u1 | 1:68.11.0-1~deb10u1 |
| Debian:12 | chromium | before 87.0.4280.88-0.1 | 87.0.4280.88-0.1 |
| Debian:12 | firefox-esr | before 68.11.0esr-1 | 68.11.0esr-1 |
| Debian:12 | thunderbird | before 1:68.11.0-1 | 1:68.11.0-1 |
| Debian:9 | firefox-esr | before 68.11.0esr-1~deb9u1 | 68.11.0esr-1~deb9u1 |
| Debian:9 | thunderbird | before 1:68.11.0-1~deb9u1 | 1:68.11.0-1~deb9u1 |
| openSUSE:Leap 15.1 | chromium | before 84.0.4147.89-lp151.2.109.1 | 84.0.4147.89-lp151.2.109.1 |
| openSUSE:Leap 15.1 | MozillaFirefox | before 78.1.0-lp151.2.61.1 | 78.1.0-lp151.2.61.1 |
| openSUSE:Leap 15.1 | MozillaThunderbird | before 68.11.0-lp151.2.47.1 | 68.11.0-lp151.2.47.1 |
| openSUSE:Leap 15.1 NonFree | opera | before 70.0.3728.71-lp151.2.24.1 | 70.0.3728.71-lp151.2.24.1 |
| openSUSE:Leap 15.2 | chromium | before 84.0.4147.89-lp152.2.6.2 | 84.0.4147.89-lp152.2.6.2 |
| openSUSE:Leap 15.2 | MozillaFirefox | before 78.1.0-lp152.2.15.1 | 78.1.0-lp152.2.15.1 |
| openSUSE:Leap 15.2 | MozillaFirefox | before 78.1.0-lp152.2.12.1 | 78.1.0-lp152.2.12.1 |
| openSUSE:Leap 15.2 | MozillaThunderbird | before 68.11.0-lp152.2.7.1 | 68.11.0-lp152.2.7.1 |
| openSUSE:Leap 15.2 | pipewire | before 0.3.6-lp152.2.3.1 | 0.3.6-lp152.2.3.1 |
| openSUSE:Leap 15.2 NonFree | opera | before 70.0.3728.71-lp152.2.12.1 | 70.0.3728.71-lp152.2.12.1 |
| Red Hat:enterprise_linux:6::client | firefox | before 0:68.11.0-1.el6_10 | 0:68.11.0-1.el6_10 |
| Red Hat:enterprise_linux:6::client | firefox-debuginfo | before 0:68.11.0-1.el6_10 | 0:68.11.0-1.el6_10 |
| Red Hat:enterprise_linux:6::client | thunderbird | before 0:68.11.0-1.el6_10 | 0:68.11.0-1.el6_10 |
| Red Hat:enterprise_linux:6::client | thunderbird-debuginfo | before 0:68.11.0-1.el6_10 | 0:68.11.0-1.el6_10 |
| Red Hat:enterprise_linux:7::client | firefox | before 0:68.11.0-1.el7_8 | 0:68.11.0-1.el7_8 |
| Red Hat:enterprise_linux:7::client | firefox-debuginfo | before 0:68.11.0-1.el7_8 | 0:68.11.0-1.el7_8 |
| Red Hat:enterprise_linux:7::client | thunderbird | before 0:68.11.0-1.el7_8 | 0:68.11.0-1.el7_8 |
+30
Same product
google: all recordsOther highest-scoring records for the same primary product.
- CVE-2023-4863Heap buffer overflow in libwebp in Google Chrome prior to 116.0.5845.187 and libwebp 1.3.2 allowed a remote attacker to perform an out of boKEV95Now
- CVE-2021-21224Type confusion in V8 in Google Chrome prior to 90.0.4430.85 allowed a remote attacker to execute arbitrary code inside a sandbox via a craftKEV90Now
- CVE-2018-17463Incorrect side effect annotation in V8 in Google Chrome prior to 70.0.3538.64 allowed a remote attacker to execute arbitrary code inside a sKEV90Now
Published before and after this one in the same product
- ← EarlierCVE-2020-6512Jul 22, 2020 · Type Confusion in V8 in Google Chrome prior to 84.0.4147.89 allowed a remote attacker to potentially exploit heap corruption via a crafted H36Monitor
- ← EarlierCVE-2020-6513Jul 22, 2020 · Heap buffer overflow in PDFium in Google Chrome prior to 84.0.4147.89 allowed a remote attacker to potentially exploit heap corruption via a36Monitor
- Later →CVE-2020-6515Jul 22, 2020 · Use after free in tab strip in Google Chrome prior to 84.0.4147.89 allowed a remote attacker to potentially exploit heap corruption via a cr36Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:chromium | 87.0.4280.88-0.1 · Debian:12 | Package registry (OSV) |
| debian:firefox-esr | 68.11.0esr-1 · Debian:12 | Package registry (OSV) |
| debian:thunderbird | 1:68.11.0-1 · Debian:12 | Package registry (OSV) |
| opensuse:chromium | 84.0.4147.89-lp152.2.6.2 · openSUSE:Leap 15.2 | Package registry (OSV) |
| opensuse:MozillaFirefox | 78.1.0-lp151.2.61.1 · openSUSE:Leap 15.1 | Package registry (OSV) |
| opensuse:MozillaThunderbird | 68.11.0-lp151.2.47.1 · openSUSE:Leap 15.1 | Package registry (OSV) |
| opensuse:opera | 70.0.3728.71-lp151.2.24.1 · openSUSE:Leap 15.1 NonFree | Package registry (OSV) |
| opensuse:pipewire | 0.3.6-lp152.2.3.1 · openSUSE:Leap 15.2 | Package registry (OSV) |
| red hat:chromium-browser | 0:84.0.4147.105-2.el6_10 · Red Hat:rhel_extras:6 | Package registry (OSV) |
| red hat:chromium-browser-debuginfo | 0:84.0.4147.105-2.el6_10 · Red Hat:rhel_extras:6 | Package registry (OSV) |
| red hat:firefox | 0:68.11.0-1.el8_0 · Red Hat:rhel_e4s:8.0::appstream | Package registry (OSV) |
| red hat:firefox-debuginfo | 0:68.11.0-1.el8_0 · Red Hat:rhel_e4s:8.0::appstream | Package registry (OSV) |
| red hat:firefox-debugsource | 0:68.11.0-1.el8_0 · Red Hat:rhel_e4s:8.0::appstream | Package registry (OSV) |
| red hat:thunderbird | 0:68.11.0-1.el8_2 · Red Hat:enterprise_linux:8::appstream | Package registry (OSV) |
| red hat:thunderbird-debuginfo | 0:68.11.0-1.el8_2 · Red Hat:enterprise_linux:8::appstream | Package registry (OSV) |
| red hat:thunderbird-debugsource | 0:68.11.0-1.el8_2 · Red Hat:enterprise_linux:8::appstream | Package registry (OSV) |
| suse:chromium | 84.0.4147.89-bp152.2.7.1 · SUSE:Package Hub 15 SP2 | Package registry (OSV) |
| suse:MozillaFirefox | 78.1.0-78.87.1 · SUSE:Linux Enterprise Server 11 SP4-LTSS | Package registry (OSV) |
| suse:MozillaFirefox-branding-SLE | 78-9.2.4 · SUSE:Linux Enterprise Module for Desktop Applications 15 SP2 | Package registry (OSV) |
| suse:MozillaThunderbird | 68.11.0-3.91.1 · SUSE:Linux Enterprise Workstation Extension 15 SP1 | Package registry (OSV) |
| suse:pipewire | 0.3.6-3.3.2 · SUSE:Linux Enterprise Module for Desktop Applications 15 SP2 | Package registry (OSV) |
Exploit status
Proof of concept available
A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.
Evidence
- Proof-of-concept repository on GitHub ×1
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Proof-of-concept repository on GitHub | stars:2 | 2020-08-09 |
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
- Published
- First PoC+17 d
- TodayOct 30, 2026+2291 d
No history yet (it accumulates with the daily EPSS job).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
National notice (Türkiye Cybersecurity Directorate / USOM)
Official security notices citing this record; remediation advice is on the agency's page.
- TR-20-573 · Aug 7, 2020(Thunderbird Zafiyeti)
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- A user must open a link or visit a page.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- high · data or configuration can be modified
- Availability
- none
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- High
- Availability impact
- None
Weakness class (CWE)
CWE-200 · Exposure of Sensitive Information to an Unauthorized ActorCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
nvd-primary
Root cause
The extension requests broader permissions than its function needs and sends the data it collects out for purposes beyond its stated function.
The bug in code
The whole CWE-200 classA representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.
Vulnerable
{
"permissions": ["tabs", "<all_urls>"],
"background": { "service_worker": "analytics.js" }
}Fixed
{
"permissions": ["activeTab"],
"host_permissions": ["https://yildiz.example/*"]
}Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- ExcavationCAPEC-116likelihood: High · Medium
- Subverting Environment Variable ValuesCAPEC-13likelihood: High · Very High
- FootprintingCAPEC-169likelihood: High · Very Low
- Exploiting Trust in ClientCAPEC-22likelihood: High · High
- FingerprintingCAPEC-224likelihood: High · Very Low
- ICMP Echo Request PingCAPEC-285likelihood: Medium · Low
- TCP SYN ScanCAPEC-287Low
- Enumerate Mail Exchange (MX) RecordsCAPEC-290Low
ATT&CK techniques
- System Service DiscoveryT1007
- System Network Configuration DiscoveryT1016
- Remote System DiscoveryT1018
- System Owner/User DiscoveryT1033
- Masquerading: Match Legitimate Name or LocationT1036.005
- Network Service ScanningT1046
- System Network Connections DiscoveryT1049
- Process DiscoveryT1057
- Permission Groups DiscoveryT1069
- System Information DiscoveryT1082
- File and Directory DiscoveryT1083
- Account DiscoveryT1087
- Multi-Factor Authentication InterceptionT1111
- Peripheral Device DiscoveryT1120
- System Time DiscoveryT1124
- Access Token Manipulation:Token Impersonation/TheftT1134.001
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (19 more)Show less
- lists.opensuse.org/opensuse-security-announce/2020-08/msg00007.html
- lists.opensuse.org/opensuse-security-announce/2020-08/msg00008.html
- lists.opensuse.org/opensuse-security-announce/2020-08/msg00011.html
- lists.opensuse.org/opensuse-security-announce/2020-08/msg00018.html
- lists.opensuse.org/opensuse-security-announce/2020-08/msg00022.html
- lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.html
- lists.opensuse.org/opensuse-security-announce/2020-08/msg00032.html
- lists.opensuse.org/opensuse-security-announce/2020-09/msg00041.html
- chromereleases.googleblog.com/2020/07/stable-channel-update-for-desktop.html
- lists.debian.org/debian-lts-announce/2020/07/msg00027.html
- lists.debian.org/debian-lts-announce/2020/08/msg00006.html
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MTRPPTKZ2RKVH2XGQCWNFZ7FOGQ5LLCA/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MYIDWCHG24ZTFD4P42D4A4WWPPA74BCG/
- security.gentoo.org/glsa/202007-08
- security.gentoo.org/glsa/202007-64
- security.gentoo.org/glsa/202101-30
- support.apple.com/kb/HT211288
- support.apple.com/kb/HT211290
- support.apple.com/kb/HT211291
Vendor advisories and official records. Exploit/PoC links are deliberately left out.